[1]L Tiangui,KONG Anni,WANG Li.Evaluation of Regional Ecological Security and Obstacle Diagnosis of Ecological Civilization Demonstration Area Based on PSR Model[J].Research of Soil and Water Conservation,2021,28(02):343-350.
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Evaluation of Regional Ecological Security and Obstacle Diagnosis of Ecological Civilization Demonstration Area Based on PSR Model
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
28
Number of periods:
2021 02
Page number:
343-350
Column:
Public date:
2021-02-06
- Title:
- Evaluation of Regional Ecological Security and Obstacle Diagnosis of Ecological Civilization Demonstration Area Based on PSR Model
- Keywords:
- ecological civilization demonstration area; ecological security; PSR model; obstacle model; Jiangxi Province
- CLC:
- X171.1
- DOI:
- -
- Abstract:
- The purpose of this paper is to explore the change trend and influencing factors of ecological security in the ecological civilization demonstration area. The evaluation index system of regional ecological security was constructed based on the PSR model. The entropy weight method was used to evaluate the regional ecological security situation of Jiangxi Province from 2009 to 2018 in the past ten years, meanwhile the obstacle factors of regional ecological security in Jiangxi Province were analyzed with the obstacle model. The results showed that:(1)it was suggested that the overall level of ecological security in all cities of Jiangxi Province had been improved, and the score of ecological security had been steadily rising, but there was a large gap in the level of ecological security in all cities;(2)it demonstrated that the barrier degree of regional ecological security factors decreased in the order: response factors>pressure factors>state factors, while the ecological security of Jiangxi Province was affected by the proportion of urban construction land area, the water consumption of ecological environment, the level of urbanization, the proportion of the first industry in GDP and the amount of pesticide used per unit land area;(3)it showed that the ecological security of Jiangxi Province was divided into the ecological economic development coordination area, ecological economy improvement area and ecological security fragile area;(4)it revealed that the governance system should be constructed from the aspects of redevelopment of stock land, promoting the high-quality development of regional agriculture and strengthening the response of ecological environment policy. It was concluded that the ecological security level of ecological civilization demonstration area was more than critical level(Ⅱ), and there was still a large gap from the basic security level(Ⅲ). Meanwhile, the spatial analysis of ecological security and the diagnosis of obstacle factors can provide the theoretical support for the formulation of ecological sustainable development policies in the future.
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Last Update:
2021-02-10